<!--
 * @Descripttion: 图标选择器组件
 * @version: 2.0
 * @Author: sakuya
 * @Date: 2021年7月27日10:02:46
 * @LastEditors: sakuya
 * @LastEditTime: 2022年6月6日13:48:49
-->

<template>
  <div class="sc-icon-select">
    <div class="sc-icon-select__wrapper" :class="{ hasValue: value }" @click="open">
      <el-icon :color="iconcolor" style="font-size: 20px">
        <component :is="value" />
      </el-icon>
    </div>
    <el-dialog
      title="图标选择器"
      v-model="dialogVisible"
      :width="760"
      destroy-on-close
      append-to-body
    >
      <div class="sc-icon-select__dialog" style="margin: -20px 0 -10px 0">
        <el-form :rules="{}">
          <el-form-item prop="searchText">
            <el-input
              class="sc-icon-select__search-input"
              prefix-icon="el-icon-search"
              v-model="searchText"
              placeholder="搜索"
              size="large"
              clearable
            />
          </el-form-item>
        </el-form>
        <el-tabs>
          <el-tab-pane v-for="item in data" :key="item.name" lazy>
            <template #label>
              {{ item.name }}
              <el-tag size="small" type="info">{{ item.icons.length }}</el-tag>
            </template>
            <div class="sc-icon-select__list">
              <el-scrollbar>
                <ul @click="selectIcon">
                  <el-empty
                    v-if="item.icons.length == 0"
                    :image-size="100"
                    description="未查询到相关图标"
                  />
                  <li v-for="icon in item.icons" :key="icon">
                    <span :data-icon="icon"></span>
                    <el-icon><component :is="icon" /></el-icon>
                  </li>
                </ul>
              </el-scrollbar>
            </div>
          </el-tab-pane>
        </el-tabs>
      </div>
      <template #footer>
        <el-button @click="clear" text>清除</el-button>
        <el-button @click="dialogVisible = false">取消</el-button>
      </template>
    </el-dialog>
  </div>
</template>

<script>
import config from "@/config/iconSelect";

export default {
  props: {
    modelValue: { type: String, default: "" },
    disabled: { type: Boolean, default: false },
    color: { type: String, default: "" },
  },
  data() {
    return {
      value: this.modelValue,
      dialogVisible: false,
      data: [],
      searchText: "",
      iconcolor: this.color,
    };
  },
  watch: {
    value(val) {
      this.$emit("update:modelValue", val);
    },
    searchText(val) {
      this.search(val);
    },
  },
  mounted() {
    this.data.push(...config.icons);
  },
  methods: {
    open() {
      if (this.disabled) {
        return false;
      }
      this.dialogVisible = true;
    },
    selectIcon(e) {
      if (e.target.tagName != "SPAN") {
        return false;
      }
      this.value = e.target.dataset.icon;
      this.dialogVisible = false;
    },
    clear() {
      this.value = "";
      this.dialogVisible = false;
    },
    search(text) {
      if (text) {
        const filterData = JSON.parse(JSON.stringify(config.icons));
        filterData.forEach((t) => {
          t.icons = t.icons.filter((n) => n.includes(text));
        });
        this.data = filterData;
      } else {
        this.data = JSON.parse(JSON.stringify(config.icons));
      }
    },
  },
};
</script>

<style scoped>
.sc-icon-select {
  display: inline-flex;
}
.sc-icon-select__wrapper {
  cursor: pointer;
  display: inline-flex;
}
.sc-icon-select__wrapper:deep(.el-input__wrapper).is-focus {
  box-shadow: 0 0 0 1px var(--el-input-hover-border-color) inset;
}
.sc-icon-select__wrapper:deep(.el-input__inner) {
  flex-grow: 0;
  width: 0;
}
.sc-icon-select__wrapper:deep(.el-input__icon) {
  margin: 0;
  font-size: 16px;
}
.sc-icon-select__wrapper.hasValue:deep(.el-input__icon) {
  color: var(--el-text-color-regular);
}

.sc-icon-select__list {
  height: 270px;
  overflow: auto;
}
.sc-icon-select__list ul {
}
.sc-icon-select__list li {
  display: inline-block;
  width: 80px;
  height: 80px;
  margin: 5px;
  vertical-align: top;
  transition: all 0.1s;
  border-radius: 4px;
  position: relative;
}
.sc-icon-select__list li span {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  cursor: pointer;
}
.sc-icon-select__list li i {
  display: inline-block;
  width: 100%;
  height: 100%;
  font-size: 26px;
  color: #6d7882;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 4px;
}
.sc-icon-select__list li:hover {
  box-shadow: 0 0 1px 4px var(--el-color-primary);
  background: var(--el-color-primary-light-9);
}
.sc-icon-select__list li:hover i {
  color: var(--el-color-primary);
}
</style>
